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Finding the Fourth Proportional to 291,999.74, 437,997.02 and 92,320.26

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Solution

The fourth proportional to 291,999.74, 437,997.02 and 92,320.26 is: 138,479.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,999.74 : 437,997.02 = 92,320.26 : x
  2. Step 2: Convert to fraction form
    291,999.74/437,997.02 = 92,320.26/x
  3. Step 3: Cross multiply
    291,999.74x = 437,997.02 × 92,320.26
  4. Step 4: Simplify right side
    291,999.74x = 40,435,997,180.84
  5. Step 5: Solve for x
    x = 40,435,997,180.84/291,999.74
  6. Step 6: Final answer
    x = 138,479.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.